Data Release 1

Image Products

All DR1 images are astrometrically calibrated. The current release provides instrumental, calibrated, and star-removed mean stacks for 2116 fields, together with downloadable bundles of individual exposures for each field.

Products Included

Instrumental

Mean-combined stacks in counts, with FITS header metadata for photometric conversion.

Photometrically Calibrated

Fields converted to Janskies using the field-specific photometric zero point.

Star-Removed

Calibrated mean fields with star-removal processing applied.

Individual Exposures

Per-field bundles of the component exposures used to form the mean stack.

Photometric Calibration

Instrumental images include the MAGZP header keyword, which is used to convert measured counts to calibrated AB magnitudes.

mag(MDW) = -2.5 * log10(measured flux [counts]) + MAGZP

The magnitude zero point is determined by comparing MDW instrumental Hα magnitudes to catalog-matched IGAPS AB Hα magnitudes and aligning the stellar locus with the synthetic early-A reddening line.

For calibrated and star-removed products, the FITS unit is converted to Janskies.

mag(MDW) = -2.5 * log10(measured flux [Jy] / 3631 [Jy])

Per-Field Downloads

The filter below narrows the displayed fields by RA and Dec. Individual field bundles are linked through the per-field CGI download route.